Bedienungsanleitung Navman Diesel Fuel Flow Sensors (Seite 22 von 39) (Englisch)

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Diesel fuel flow sensor kit Installation and Operation Manual

NAVMAN

Installation sequence

The fuel lines are modified and temporary

straight through pipes fitted where the sensors

will be fitted. The engine is run, then the real

sensors are fitted. This procedure ensures

that debris from the installation does not enter

the sensors.

The recommended installation sequence is:

1 Read this manual and the documentation

that comes with the other parts. Read

section 7-1 for background information on

fuel pipes and fittings.

2 Plan the installation and choose where

the fuel flow sensors and cables will

be located (see section 7-3). Choose

suitable fittings for connecting the sensors

to the fuel lines (see section 6-3)

3 Install temporary straight through pipes in

the fuel line where the sensors will later

be fitted (see section 7-4).

4 Bleed the fuel lines and test run the

engine. Then remove the two straight

through pipes and fit the two fuel flow

sensors (see section 7-5).

6 Install the tachometer (see section 7-6).

7 Install the cables to link the parts of the

system together and to the Navman

display instrument (see section 7-7).

8 Setup the Navman instrument to use the

fuel flow sensors and tachometer, as

described in the instrument’s installation

and operation manual. Take the boat on

a test run and check that the sensors are

performing correctly.

If you are unsure where a part should be

installed, mount and wire the part temporarily,

without cutting holes in the boat. After the sea

trials have been completed, install and wire the

part permanently.

7 Installing the diesel flow sensor kit

Correct installation is critical to the

performance of the unit. Before starting

installation, it is vital to read this manual

and the documentation that comes with

the other parts.

Ensure that any holes that you cut will not

weaken the boat’s structure. If in doubt,

consult a qualified boat builder.

One important thing to stress is the need

for cleanliness in the installation process.

Diesel engines, and the Navman sensors

are built to fine tolerances - do not allow

any dust, dirt, water or particles to enter

the fuel system.

DAMAGE WILL RESULT if you ignore

this warning.

Warnings

If the boat has twin engines then a second diesel flow sensor kit can be fitted and connected to

the same Navman instrument. To install the kits, fit a kit to each engine, following the instructions

above for each engine and tank. At the display unit, connect the sensor cables from the two kits

in parallel (see section 7-7-2).

The sensors need to be identified as port and starboard in the display unit. You may find more

instructions included in the display head manual.

7-1 Twin engine installations

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Navman Diesel Fuel Flow Sensors Seite 22

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